Styrofoam

Although from opposite sides of the aisle, newly elected representatives Mary and Tom often had lunch together in the House Cafeteria. Nothing political, but they both drank tea.
"Ahha," said Tom recently at the lunch counter, "Our new house leaders have seen fit to bring back the Styrofoam cups your party tossed in favor of the so-called green paper cups."
"In that case I'm switching to coffee," said Mary.
Tom laughed. "To protest our Tea Party, I assume?"
"No, I take lemon in my tea, and as any tea drinker knows, the acid eats away at the Styrofoam."
"Well then, I guess I won't have lemon in my tea," said Tom.
Yeah," said Mary. "Not having lemon is a little thing. Maybe you could one-up Obama's We Do Big Things slogan."
"How's that?"
"We Do Little Things?"